Home / 20,925.25-31,390.95-6,882.67

Finding the Fourth Proportional to 20,925.25, 31,390.95 and 6,882.67

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Solution

The fourth proportional to 20,925.25, 31,390.95 and 6,882.67 is: 10,325.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.25 : 31,390.95 = 6,882.67 : x
  2. Step 2: Convert to fraction form
    20,925.25/31,390.95 = 6,882.67/x
  3. Step 3: Cross multiply
    20,925.25x = 31,390.95 × 6,882.67
  4. Step 4: Simplify right side
    20,925.25x = 216,053,438.31
  5. Step 5: Solve for x
    x = 216,053,438.31/20,925.25
  6. Step 6: Final answer
    x = 10,325.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.